SynonymsZolpidem Tartrate EP Impurity E ; N,N-Dimethyl-4-(4-methylphenyl)-4-oxo-2-butenamide; (E)-N,N-Dimethyl-4-oxo-4-(p-tolyl)but-2-enamide; Zolpidem EP Impurity E Close Zolpidem Tartrate EP Impurity E ; N,N-Dimethyl-4-(4-methylphenyl)-4-oxo-2-butenamide; (E)-N,N-Dimethyl-4-oxo-4-(p-tolyl)but-2-enamide; Zolpidem EP Impurity E Related products Tolyloyl acrylamide M.F. M.W. 217.26 CAT# AR-A03250 CAS# 83192-85-2